Ụlọ ọrụ nrụpụta na-ere igwe na-eme ka mmanụ mmanụ kpọrọ ihe - Họrọ ntuziaka mmanụ lubrication - Jianhe
Studentlọ ọrụ na-ere ihe na-ere igwe na-ere mmanụ na-ere mmanụ - Mee mgbapụta mmanụ ọkụ - jinianhedetail:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Ndị ahịa kachasị elu, na ndị na-azụ ahịa na-enye onyinye dị elu nye ndị ahịa anyị. na ọrụ bụ ndụ nke ngwaahịa ahụ ". Ruo ugbu a, a napụla ngwaahịa anyị ka ihe karịrị mba 20 n'okpuru nchịkwa anyị siri ike na ọrụ dị elu.